According to a May 11 report from Reuters, BP Plc said it has finished building a smaller dome designed to trap oil spewing from the floor of the Gulf of Mexico and plans to try placing it over the relentless leak. This "top hat" dome was taken out to sea by ship from Port Fourchon in southeastern Louisiana, where it was made. Robotic submarines will then make preparations before the containment structure is put into place.
(Source: Reuters)